Khalid Abubaker from Libya (R), 33, shows the color of ground water, the only source some refugees have available, at the "Refugee Camp in my Neighbourhood" installation in a Sydney park in Australia, August 7, 2017. The temporary "refugee camp" project, established by a local Sydney council, has been set up to replicate the real life conditions of refugee camps around the world and employs former refugees as tour guides to educate Australians on the plight of millions displaced by humanitarian emergencies globally. REUTERS/Jason Reed

Anthony Hartinger, co-founder of Detroit Ento, a start-up turning locally sourced insects into food products, holds freeze-dried edible crickets in his hand during the 'Eating Insects Detroit: Exploring the Culture of Insects as Food and Feed' conference at Wayne State University in Detroit, Michigan May 26, 2016. REUTERS/Rebecca Cook